Home / 493,392.12-680,876.28-278,527.56

Finding the Fourth Proportional to 493,392.12, 680,876.28 and 278,527.56

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Solution

The fourth proportional to 493,392.12, 680,876.28 and 278,527.56 is: 384,365.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,392.12 : 680,876.28 = 278,527.56 : x
  2. Step 2: Convert to fraction form
    493,392.12/680,876.28 = 278,527.56/x
  3. Step 3: Cross multiply
    493,392.12x = 680,876.28 × 278,527.56
  4. Step 4: Simplify right side
    493,392.12x = 189,642,808,930.28
  5. Step 5: Solve for x
    x = 189,642,808,930.28/493,392.12
  6. Step 6: Final answer
    x = 384,365.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.